feat(v2.3.5): added missing affiliate endpoints in broker client, updated examples and endpoint map

examples/apidoc/RestClientV2/getFuturesTriggerSubOrder.js

@@ -0,0 +1,22 @@
+const { RestClientV2 } = require('bitget-api');
+
+
+  // This example shows how to call this Bitget API endpoint with either node.js, javascript (js) or typescript (ts) with the npm module "bitget-api" for Bitget exchange
+  // This Bitget API SDK is available on npm via "npm install bitget-api"
+  // ENDPOINT: /api/v2/mix/order/plan-sub-order
+  // METHOD: GET
+  // PUBLIC: NO
+
+const client = new RestClientV2({
+  apiKey: 'insert_api_key_here',
+  apiSecret: 'insert_api_secret_here',
+  apiPass: 'insert_api_pass_here',
+});
+
+client.getFuturesTriggerSubOrder(params)
+  .then((response) => {
+    console.log(response);
+  })
+  .catch((error) => {
+    console.error(error);
+  });